US Bridges

Trappey Rd. over Drain

Good

Lafayette Parish, Louisiana · 0.2 Mi. N of Kidder Road · Structure no. 032800000030391

Built
1999
26 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
38 ft
2 main spans
Daily traffic
1,110
2020 count
Owner
County
County Highway Agency

About this bridge

Trappey Rd. over Drain is a concrete slab carrying Trappey Rd. over Drain in Lafayette Parish, Louisiana. It was built in 1999, so it is 26 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,110 vehicles a day, projected to reach 1,221 by 2040. The structure is 38 ft (11.6 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesTrappey Rd.
CrossesDrain
Location0.2 Mi. N of Kidder Road
RouteCounty Highway 0
Coordinates30.35898, -92.01852
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66 US tons
Inventory rating51 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,110 (2020)
Projected traffic1,221 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Trappey Rd. over Drain built?

It was built in 1999, making it 26 years old in 2025.

What condition is Trappey Rd. over Drain in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Trappey Rd. over Drain carry?

About 1,110 vehicles per day (2020 count).

How long is Trappey Rd. over Drain?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Trappey Rd. over Drain?

It is owned by the County Highway Agency.